Historic short interest:
You can go to this link to check short interest in a stock:
http://nasdaqtrader.com/Trader.aspx?id=ShortInterest
Publication schedule is here:
http://nasdaqtrader.com/Trader.aspx?id=ShortIntPubSch
Velodyne Lidar, Inc. - Common Stock
Settlement Date Short Interest Percent Change Average Daily Share Volume Days to Cover
08/13/2021 19,186,773 5.09 2,960,885 6.48
07/30/2021 18,257,806 17.06 2,991,514 6.10
07/15/2021 15,596,561 (4.18) 2,681,121 5.82
06/30/2021 16,276,478 17.08 4,589,990 3.55
06/15/2021 13,902,441 (6.69) 6,345,985 2.19
05/28/2021 14,899,131 (4.82) 3,626,331 4.11
05/14/2021 15,654,099 0.07 2,848,366 5.50
04/30/2021 15,642,676 (11.39) 2,669,928 5.86
04/15/2021 17,654,055 4.88 2,961,468 5.96
03/31/2021 16,832,162 5.86 3,737,942 4.50
03/15/2021 15,901,113 81.08 5,962,858 2.67
02/26/2021 8,781,066 29.61 6,086,623 1.44
02/12/2021 6,775,091 46.14 3,558,194 1.90
01/29/2021 4,636,131 (14.40) 5,146,261 1.00
01/15/2021 5,416,276 (37.23) 5,579,541 1.00
12/31/2020 8,628,110 15.04 11,153,759 1.00
12/15/2020 7,499,928 74.57 10,444,329 1.00
11/30/2020 4,296,335 46.90 2,066,108 2.08
11/13/2020 2,924,596 72.41 1,635,138 1.79
10/30/2020 1,696,311 49.30 1,881,449 1.00
10/15/2020 1,136,188 (43.57) 3,563,783 1.00
09/30/2020 2,013,361 1,453,162 1.39
